Safety Relay Module

Moore Industries has released the SRM Safety Relay Module, a versatile relay repeater module that has been certified by exida for single use in Safety Instrumented Systems up to SIL 2. The module accepts single contact closure inputs from logic solver trip outputs. With three contacts per alarm input, the device allows for the addition of alarm contacts to safety processes without special installation or configuration. It is a Force Guided Relay, avoiding the possibility of having contacts become stuck in both Normally Open (NO) and Normally Closed (NC) positions at the same time and avoids potential problems caused by issues such as welded contacts. The module is built using a safety-related relay with forcibly-guided contacts, which are monitored and mechanically linked to the same armature as the output contacts. It has been developed following the IEC 61508 standard and offers a high level of availability for safety-critical applications and for use as a component part of Safety Instrumented Systems (SIS).